Registry data as of Aug 27, 2026

Atanas Iliev, D.O.

Internal Medicine Physician · Kalamazoo, MI

Atanas Iliev, D.O. is an internal medicine physician with a practice address in Kalamazoo, Michigan, and NPI 1942612858, issued on May 27, 2014. Check the license (Michigan 5101021080, as entered in NPPES) on the Michigan Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1942612858
Name
Atanas Iliev
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
5101021080 MI
Self-reported in NPPES; status is on the state search
Practice location
601 John St Ste 100, Kalamazoo, MI 49007
Phone
(269) 373-1222
Enumerated
May 27, 2014
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 601 John St Ste 100

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jonathon Blais, D.OInternal Medicine Physician1881048213
  2. Thomas Franzon, M.D.Clinical Cardiac Electrophysiology Physician1740676295
  3. Ryan GoodAdult Health Nurse Practitioner1104512169
  4. Sherin John, PA-CPhysician Assistant1912583170
  5. Shreya NagarkarPhysician Assistant1336872662
  6. Rachel Newhouse, PACPhysician Assistant1942924576

Verify Atanas Iliev in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine
    Search for license 5101021080
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

52% more Medicare Part D claims than the average internal medicine physician in 2024

4,241 Medicare Part D claims for 649 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.

  1. Atanas Iliev4,241
  2. Specialty average2,785

Most prescribed

  1. Eliquis714 claims
  2. Metoprolol Succinate675 claims
  3. Carvedilol264 claims
  4. Entresto230 claims
  5. Isosorbide Mononitrate Er190 claims
  6. Furosemide180 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $394.38

28 payments, mostly food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C.. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Atanas Iliev$394.38
  2. Specialty average$2,536.66

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

4 hospital and facility affiliations

  1. Bronson Lakeview HospitalPaw Paw, MI · Critical Access Hospitals5 of 5 stars
  2. Bronson Methodist HospitalKalamazoo, MI · Acute Care Hospitals4 of 5 stars
  3. Bronson Battle Creek HospitalBattle Creek, MI · Acute Care Hospitals3 of 5 stars
  4. Bronson South Haven HospitalSouth Haven, MI · Acute Care Hospitals

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

154 internal medicine physician records list a Kalamazoo practice address

They are 154 of the 6,553 NPPES records with a Kalamazoo practice address, and 6,589 internal medicine physician records in Michigan.

Other internal medicine physician records in Michigan

  1. Keith Aaronson, MDAnn Arbor, MI1144305301
  2. Tomas Abalo, M.D.Iron Mountain, MI1336199975
  3. Ali Abbas, M.D.Pontiac, MI1972167526
  4. Hawazin Abbas, MDAuburn Hills, MI1699020677
  5. Imran Abbasi, D.O.Warren, MI1427409887
  6. Ramzi Abbasi, MDSaginaw, MI1164270005
  7. Saadat Abbasi, MDKalamazoo, MI1912005596
  8. Shahzaman Abbasi, MDLansing, MI1376512111
  9. Youssef Abbiss, D.O.Mount Clemens, MI1982991881
  10. Joseph Abbo, MDYpsilanti, MI1982136503

Common questions

What is Atanas Iliev, D.O.'s NPI number?

Atanas Iliev, D.O.'s National Provider Identifier (NPI) is 1942612858, issued on May 27, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Atanas Iliev, D.O. located?

The NPPES record lists a practice address at 601 John St Ste 100, Kalamazoo, MI, 49007. Phone: (269) 373-1222. Providers update this record themselves, so call before visiting.

How can I verify Atanas Iliev, D.O.'s license?

NPPES lists Michigan license number 5101021080, as entered by the provider. Search the Michigan Board of Medicine at https://www.michigan.gov/lara/bureau-list/bpl/health/hp-lic-health-prof/medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Atanas Iliev, D.O. prescribe under Medicare Part D?

In 2024, Atanas Iliev, D.O. had 4,241 Medicare Part D claims for 649 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.